code: def testConstantInput(self):
      onesAudio = ones(100000)
      estimate = LoopBpmEstimator(confidenceThreshold=0.95)(onesAudio)
      self.assertEqual(0, estimate)
  
file_path: essentia/test/src/unittests/rhythm/test_loopbpmestimator.py
imports: from essentia_test import *
  from essentia.standard import MonoLoader, LoopBpmEstimator
  import numpy
label_desc: Use image node_id 5 for calling the TestLoopBpmEstimator obj's underlying member method code with example usage: obj.testConstantInput() without return types